SQl command

Update the owners of tents:

Code:
UPDATE instance_deployable d LEFT JOIN (
SELECT DISTINCT d.owner_id, s.unique_id
FROM instance_deployable d
LEFT JOIN survivor s ON s.id = d.owner_id
WHERE s.is_dead =1
) AS dead ON dead.owner_id = d.owner_id
LEFT JOIN survivor live ON live.unique_id = dead.unique_id
SET d.owner_id = live.id WHERE live.is_dead =0


Delete dead characters:

Code:
WHERE is_dead = 1 AND id NOT IN (SELECT DISTINCT owner_id FROM instance_deployable);
 
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